ALSA: hda - fix broken automute/autoswitch for Realtek

The recent addition of volume-knob widget in the auto-parser broke
automute/autoswitch for some Realtek devices.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 01179d5..7e65168 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -686,7 +686,7 @@
 	else
 		res >>= 26;
 	action = snd_hda_jack_get_action(codec, res);
-	if (res == ALC_DCVOL_EVENT) {
+	if (action == ALC_DCVOL_EVENT) {
 		/* Execute the dc-vol event here as it requires the NID
 		 * but we don't pass NID to alc_exec_unsol_event().
 		 * Once when we convert all static quirks to the auto-parser,